> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usenumero.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Validate Account Number

> Verify a recipient's bank account before a transfer — confirms the account name and that it can receive funds.

Verify a recipient's bank account before initiating a transfer. This confirms the account exists and returns the account holder's name so you can confirm with your user before sending money.

## Endpoint

```
POST /api/v1/business/validate
```

**Signature required:** Yes

## Headers

| Header                       | Required | Description                                                                                                                                                                    |
| ---------------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `X-Numero-Api-Key`           | Yes      | Your API key                                                                                                                                                                   |
| `X-Numero-Signature`         | Yes      | Base64 HMAC-SHA256 over the exact raw request body (POST) or the canonicalised query string (GET), keyed with your **Public Key**. See [Request signing](/03-request-signing). |
| `X-Numero-Signature-Version` | Yes      | Always `v2`.                                                                                                                                                                   |

## Request body

| Field           | Type   | Required | Description                                                                      |
| --------------- | ------ | -------- | -------------------------------------------------------------------------------- |
| `accountNumber` | string | Yes      | Recipient's bank account number                                                  |
| `bankCode`      | string | Yes      | Recipient's bank code (from [Get Bank List](/api-reference/transfers-get-banks)) |

## Request example

```bash theme={null}
curl -X POST "https://api.usenumero.com/numeroaccount/api/v1/business/validate" \
  -H "Content-Type: application/json" \
  -H "X-Numero-Api-Key: your_api_key" \
  -H "X-Numero-Signature: $SIGNATURE" \
  -H "X-Numero-Signature-Version: v2" \
  -d '{
    "accountNumber": "0123456789",
    "bankCode": "000013"
  }'
```

## Response

```json theme={null}
{
  "data": {
    "accountName": "John Doe",
    "accountNumber": "0123456789",
    "bankCode": "000013"
  },
  "error": null,
  "meta": {
    "request_id": "req_365123ebc73323f1482508560ce6400e",
    "pagination": null
  }
}
```

| Field           | Type   | Description                  |
| --------------- | ------ | ---------------------------- |
| `accountName`   | string | The name on the bank account |
| `accountNumber` | string | The validated account number |
| `bankCode`      | string | The bank code                |